Tie for brickwork



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oooooooo WITNESS E S x l N V E N T OR NITED STATES VPATENT OFFICE.

JOHN G. MCDOWELL, OF PITTSBURG, PENNSYLVANIA.

TIE FOR BRICKWORK.

SPECIFICATION forming part of Letters Patent No. 620,349, dated February 28, 1899.

Application led December 27, 1897. Serial No. 663,491. (No model.)

To all whom it may concern.-

Be it known that I, JOHN G. MODOWELL, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Ties for Brickwork, dac., of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specication, in which- Figure lis a top plan view of one of my ties in position upon two bricks. Fig. 2 is a partial vertical section of a double wall provided with my improved tie, and Fig. 3 is a perspective view of the tie itself.

My invention relates to the ties or binders employed in connection with structures composed of bricks, tiles, or slabs, andis designed to provide a simple, cheap, and effective tie which shall contact with the bricks or tiles themselves and bond them securely in place.

In the drawings, 2 represents the tie,which consists of a rectangular strip of sheet metal, which is provided with upwardly and downwardly extending teeth or projections 3. I have shown the tie as of sufficient length to tie two rows of bricks together as well as to tie the brick of one row to the brick above and below it. In building this double wall I place upon the upper faces of two bricks lying in the same horizontal plane one of my improved ties, as shown in Fig. l, and mortar then being supplied to their faces the next bricks are laid upon the mortar and pressed down firmly, so as to cause the teeth or projections upon the tie to engage the upper face of the lower brick and the lower face of the upper brick, the construction being proceeded with in this manner, the teeth upon each halt` of the strip projecting inwardly toward its center, so that the teeth upon one portion project in the opposite direction from those upon the other portion of the tie. In a similar way the teeth might all project toward the ends, each j half having its teeth projecting outwardly,

;l and in either case the brick will be tied against the secure tying or binding of one brick to the bricks above and below it in the same row, this being accomplished bya tie which engages the bricks themselves, thus securing a much better result than where binders incased and surrounded by the mortar are employed and which do not engage the faces of the adjacent bricks.

The teeth or projections whichextend upwardly and downwardly may be formed in many other-ways-as,for instance, by cutting V-shaped slits in the body of the tie and bending the out portions upwardly and downwardly or by punching holes therein with upwardly and downwardly projecting bu rs. The ties may be made longer than the bricks or tiles, if desired, so that a single strip having the projections may extend across the faces of several bricks or tiles, and in this case the ends of the tie may be bent up so as to be secured to end walls or uprights. Many other variations may be made in the shape of the tie and its projections without departing from my invention, since What I claim is- 1. A tie for bricks having upward and downward projections, said projections being inclined toward the center of the tie, so that the projections upon one side are inclined in the opposite direction from those of the other side; substantially as described.

2. A wall composed of at least two courses of bricks or tiles having between their faces ties provided with upward and downward projections, said projections being inclined toward the center of the tie and engaging the faces of the bricks or tiles so as to tie the courses together; substantially as described.

3. A tie for bricks having upwardand downward projections cut from its side edges, said projections being all inclined toward the center of the tie so that the projections upon one side are inclined in the opposite directionl from those of the other side substantially as described.

In testimony whereof I have hereunto set my hand.

JOHN G. MCDOWELL.

Witnesses:

C. E. MAOKOWN, M. S. MURPHY. 

